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2/3(9+x)=-12
We move all terms to the left:
2/3(9+x)-(-12)=0
Domain of the equation: 3(9+x)!=0We add all the numbers together, and all the variables
x∈R
2/3(x+9)-(-12)=0
We add all the numbers together, and all the variables
2/3(x+9)+12=0
We multiply all the terms by the denominator
12*3(x+9)+2=0
Wy multiply elements
36x(x+2=0
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